diff --git a/.readthedocs.yml b/.readthedocs.yml
index 432eae3..4e1b59b 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -14,7 +14,7 @@ build:
     post_create_environment:
       # Install poetry
       # https://python-poetry.org/docs/#installing-manually
-      - pip install poetry
+      - pip install poetry jupyter-book
       # Tell poetry to not use a virtual environment
       - poetry config virtualenvs.create false
     post_install: